[FEATURE]: configurable opening prompt size presets and overrides in TUI home

[dmoliveira]

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Add configurable opening home prompt sizing in TUI using tui.initial_prompt presets and optional width_percent and height_percent overrides.

[github-actions]

This issue appears to be a duplicate of existing feature requests. Please check:

• [FEATURE]: configurable opening prompt size presets and overrides in TUI home #13927: [FEATURE]: configurable opening prompt size presets and overrides in TUI home
• [FEATURE]: configurable opening prompt size presets and overrides in TUI home #13905: [FEATURE]: configurable opening prompt size presets and overrides in TUI home

If one of these has more relevant discussion, consider adding your input there instead. Thanks!

[dmoliveira]

Maintainer context: this is the canonical issue linked to PR #13902. #13905 was auto-closed by the compliance timer and #13927 was an interim replacement that has been closed.